Search found 16 matches

by SAI Peregrinus
Wed Sep 19, 2018 8:51 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2048: "Curve-Fitting"
Replies: 19
Views: 6926

Re: 2048: "Curve-Fitting"

Reminds me a bit of the "Datasaurus Dozen" graphs.

https://www.autodeskresearch.com/publications/samestats
by SAI Peregrinus
Sat Mar 04, 2017 2:15 am UTC
Forum: What If?
Topic: What-If 0155: "Toaster vs. Freezer"
Replies: 43
Views: 24523

Re: What-If 0155: "Toaster vs. Freezer"

Of course the toaster wins. If it's Photonicinduction's toaster then the toaster REALLY wins.
by SAI Peregrinus
Wed Jul 20, 2016 2:29 am UTC
Forum: Science
Topic: Tonic Water
Replies: 17
Views: 6411

Re: Tonic Water

The best way to decrease CO2 loss is to increase the partial pressure of the CO2 in the atmosphere the carbonated beverage is in. Pouring it into a smaller container and securely sealing the top on is an easy way to do this. Squeezing the (plastic) bottle so that there's a much smaller air space bef...
by SAI Peregrinus
Wed Jun 01, 2016 1:59 pm UTC
Forum: Mathematics
Topic: V=L → ω_1=ω_1^CK ?
Replies: 2
Views: 2258

Re: V=L → ω_1=ω_1^CK ?

ω_1 is the first uncountable ordinal.
ω_1^CK is a countable ordinal, and thus has a smaller cardinality than ω_1. It's just got somewhat confusing notation.
by SAI Peregrinus
Sat Apr 16, 2016 1:54 pm UTC
Forum: Language/Linguistics
Topic: grade school teachers teaching phonics adding "uh" to the end of consonant sounds.
Replies: 4
Views: 4400

Re: grade school teachers teaching phonics adding "uh" to the end of consonant sounds.

Paul Meyer's IPA chart (requires flash) uses the "buh, uhbuh, uhb" style. That shows the consonant clearly and how it fits with the vowel sound. Other charts are similar, though many omit the third vowel-consonant pronunciation from the set.
by SAI Peregrinus
Wed Apr 13, 2016 9:01 pm UTC
Forum: Science
Topic: Does potential energy have mass?
Replies: 78
Views: 15862

Re: Does potential energy have mass?

Color confinement is an example of potential energy having mass. It's not gravitational potential energy, it's strong potential energy, but you do get physical quarks out of it.
by SAI Peregrinus
Wed Apr 13, 2016 8:54 pm UTC
Forum: Science
Topic: Can you (passively) heat an object hotter than your source?
Replies: 98
Views: 26608

Re: Can you (passively) heat an object hotter than your source?

We're talking about a rod, with silvered mirrors on each end and mirrors directing sunlight from the sides. There's no moving parts, no electricity, no external power source, other than the Sun. That's a passive system, sorry. I don't think 'passive' is the correct term here, "linear optics&qu...
by SAI Peregrinus
Tue Mar 29, 2016 9:44 pm UTC
Forum: Science
Topic: Can you (passively) heat an object hotter than your source?
Replies: 98
Views: 26608

Re: Can you (passively) heat an object hotter than your source?

Well, you could also theoretically pump a continuous-wave laser with sunlight. You could pump a lot of them, and aim them all at a pellet of lithium deuteride or similar in a hohlraum in such a way that the light causes an inertial confinement fusion reaction in the pellet, a la the NIF. That would ...
by SAI Peregrinus
Sun Feb 21, 2016 10:29 pm UTC
Forum: Mathematics
Topic: Python library for representing ridiculously large numbers
Replies: 3
Views: 2434

Re: Python library for representing ridiculously large numbe

David Metzler's " Ridiculously Huge Numbers " series is probably right up your alley. He starts with the Wainer hierarchy, then proceeds to the Veblen hierarchy and a bit beyond at the end. These functions make the values you can easily represent using the hyperoperators look positively ti...
by SAI Peregrinus
Mon Feb 15, 2016 5:15 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1643: "Degrees"
Replies: 147
Views: 26213

Re: 1643: "Degrees"

Really we ought to be using inverse temperature (aka coldness or thermodynamic beta). http://www.umsl.edu/~fraundorfp/ifzx/zbpercal.html It's naturally measured in zetabytes per kilocalorie, and is far better than either Celsius or Fahrenheit for temperatures normally encountered. It also provides g...
by SAI Peregrinus
Thu Jan 07, 2016 3:27 am UTC
Forum: Science
Topic: What's up with avocados?
Replies: 22
Views: 4245

Re: What's up with avocados?

Avocados are toxic to birds, and therefore evil. It's also toxic to a lot of other animals, including cats & dogs. The pit & skin are more toxic than the flesh.
by SAI Peregrinus
Fri Aug 28, 2015 5:05 pm UTC
Forum: Science
Topic: How do (wifi) antennas get their shape?
Replies: 4
Views: 2585

Re: How do (wifi) antennas get their shape?

The soldered bit is the feed line, its position doesn't matter much in some antenna designs. Eg the Inverted F Antenna.
by SAI Peregrinus
Sat Aug 22, 2015 12:24 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1567: "Kitchen Tips"
Replies: 175
Views: 28825

Re: 1567: "Kitchen Tips"

If you're anything like rmsgrey, you think closing your entire browser and restarting with a blank session is the way to close a single tab. Try Ctrl+W instead!
by SAI Peregrinus
Fri Aug 21, 2015 4:23 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1567: "Kitchen Tips"
Replies: 175
Views: 28825

Re: 1567: "Kitchen Tips"

If you're anything like me you find swallowing food difficult and painful. Try "chewing" it first!
by SAI Peregrinus
Tue Mar 31, 2015 9:43 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1505: "Ontological Argument"
Replies: 278
Views: 43566

Re: 1505: "Ontological Argument"

Why does it only hold true for the greatest of things? Why not the least? Surely, any concept of greatest must include a concept of least in opposition to it. Why must there be a least thing if there's a greatest? Trivial example: What is the least real number greater than 0 and smaller than or equ...
by SAI Peregrinus
Mon Mar 30, 2015 8:45 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1505: "Ontological Argument"
Replies: 278
Views: 43566

Re: 1505: "Ontological Argument"

Taking the Wikipedia version of Anselm's chapter 2 version of the ontological argument: 1. It is a conceptual truth (or, so to speak, true by definition) that God is a being than which none greater can be imagined (that is, the greatest possible being that can be imagined). 2. God exists as an idea ...

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